To express \( 0.0000001 \) as an equivalent negative power of 10 and as an equivalent fraction:
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As a negative power of 10: \[ 0.0000001 = 1 \times 10^{-7} \]
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As an equivalent fraction: \[ 0.0000001 = \frac{1}{10000000} \]
Therefore, we can write: \[ 0.0000001 = 1 \times 10^{-7} = \frac{1}{10000000} \]